gmc pu didn't pass smog because of obd systems fail how do i resolve this issue

Question

battery had died and then jumpstarted. stated we needed to drive the vehicle some more and then have it retested. how many miles to drive to retest.

Answer 1

if there is no issues with the car 20 to 30 miles is about right unless you have an OBD-II that monitors.

drive 10-15 miles on the freeway at 60mph and the rest normal city driving.